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KR840002948A - Guided exploration method - Google Patents

Guided exploration method Download PDF

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Publication number
KR840002948A
KR840002948A KR1019820005884A KR820005884A KR840002948A KR 840002948 A KR840002948 A KR 840002948A KR 1019820005884 A KR1019820005884 A KR 1019820005884A KR 820005884 A KR820005884 A KR 820005884A KR 840002948 A KR840002948 A KR 840002948A
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South Korea
Prior art keywords
response function
measurement
spatial domain
function
stratum
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KR1019820005884A
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Korean (ko)
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KR890004722B1 (en
Inventor
티. 쉐퍼 리차드 (외 2)
Original Assignee
원본미기재
슐룸버거 리미티드
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Publication date
Priority claimed from US06/339,005 external-priority patent/US4471436A/en
Priority claimed from US06/339,006 external-priority patent/US4513376A/en
Priority claimed from US06/338,951 external-priority patent/US4467425A/en
Application filed by 원본미기재, 슐룸버거 리미티드 filed Critical 원본미기재
Publication of KR840002948A publication Critical patent/KR840002948A/en
Application granted granted Critical
Publication of KR890004722B1 publication Critical patent/KR890004722B1/en
Expired legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/18—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/18—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging
    • G01V3/26—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device
    • G01V3/28—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device using induction coils

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  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Electromagnetism (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Debugging And Monitoring (AREA)

Abstract

내용 없음No content

Description

유도 탐사 방법Guided exploration method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 지층의 지점 P에서 지층 유도를 도시하는 2-코일 유도 존데용 유도 구조의 개략도.1 is a schematic diagram of the induction structure for a 2-coil induced sonde showing stratum induction at point P of the stratum.

제2도는 지층 도전율의 여러가지 값에 대한 전형적인 유도탐사 존데의 존데 응답 전달 함수의 실 성분의 도면.FIG. 2 is a plot of the real components of a typical Sonde response transfer function of induced exploration Sonde for various values of stratum conductivity.

제3도는 측정된 도전율이 지층 도전율의 여러가지 값에 대해 실제 도전율에 대하여 구성된 표피 효과를 도해한 도면.FIG. 3 illustrates the skin effect where measured conductivity is configured for actual conductivity for various values of stratum conductivity. FIG.

제4도는 지층 저항율(도전율의 역수)과 전형적인 선행기술의 방법으로 얻어진 저항율의 가정된 측면을 도시한 도면.4 shows the hypothesized aspects of stratum resistivity (inverse of conductivity) and resistivity obtained by a typical prior art method.

Claims (1)

탐사 장치가 탐사되는 지하층의 도전율에 따라 변화하는 존데 응답 함수를 가지며, 공간 영역 존데 응답 함수를 주요 로우브와 사이드 로우브를 특징으로 하고, 각 측정치에서 각 측정 심도로부터 이격된 지층에 흐르는 전류로부터의 영향을 감소시키는, 지하 시추공내의 여러 심도에서 유도 탐사 장치에 의하여 취해진 지하 지층의 유도 측정치로써 시추공이 가로지르는 지층의 도전을 측정치를 얻는 방법에 있어서,The probe has a Sonde response function that varies with the conductivity of the basement being explored, and the spatial domain Sonde response function is characterized by the main lobe and the side lobe, from each current measured from the current flowing through the strata spaced from the depth of measurement. A method of obtaining a measurement of the challenge of a stratum crossing a borehole as an inductive measure of an underground stratum taken by a guided exploration device at various depths in an underground borehole to reduce the impact, (a) 변화된 함수가 최초로 0 으로되는 주파수보다 작은 주파수에서 그 푸리에 변환의 끝을 자르므로써 0 도전율에서 얻어진 존데 응답 함수를 윈도우하고,(a) window the Sonde response function obtained at zero conductivity by cutting the end of its Fourier transform at a frequency less than the frequency at which the changed function first becomes zero, (b) 윈도우내의 주파수를 포함하는 표적 전달 함수를 선정하며,(b) select a target transfer function that includes the frequency in the window, (c) 끝이 잘려진 변환된 0 도전율 존데 응답 함수와 0 도전율 공간영역 존데 응답함수와 합성될 때 최소의 사이드로우브를 갖는 시스템 응답 함수로 되는 표적 전달 함수로부터 공간 영역 필터 응답 함수를 발생하고,(c) generating a spatial domain filter response function from a truncated transformed zero conductivity Zonde response function and a target transfer function that results in a system response function with minimal sidelobes when combined with a zero conductivity spatial domain Sonde response function; (d) 공간 영역 필터 응답 함수를 탐사 측정치와 합성하여 각 측정치에서 각 측정 심도 지점으로부터 이격된 지층에 흐르는 지층 전류로부터의 불필요한 영향이 감소된 처리된 탐사치를 얻는 단계들을 특징으로 하는 방법.(d) combining the spatial domain filter response function with the exploration measurements to obtain a processed exploration with reduced unwanted effects from stratum currents flowing in the strata spaced from each measurement depth point in each measurement. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR8205884A 1982-01-12 1982-12-30 Deconvolution filter for induction log processing Expired KR890004722B1 (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US06/339,005 US4471436A (en) 1982-01-12 1982-01-12 Phasor processing of induction logs including shoulder and skin effect correction
US06/339,006 US4513376A (en) 1982-01-12 1982-01-12 Phasor processing of induction logs including skin effect correction
US06/338,951 US4467425A (en) 1982-01-12 1982-01-12 Deconvolution filter for induction log processing
US339005 1982-12-01
US338951 1982-12-01
US338,951 1982-12-01
US339006 1989-04-17

Publications (2)

Publication Number Publication Date
KR840002948A true KR840002948A (en) 1984-07-21
KR890004722B1 KR890004722B1 (en) 1989-11-25

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Application Number Title Priority Date Filing Date
KR8205884A Expired KR890004722B1 (en) 1982-01-12 1982-12-30 Deconvolution filter for induction log processing

Country Status (13)

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EP (1) EP0084001B1 (en)
KR (1) KR890004722B1 (en)
AU (1) AU559470B2 (en)
BR (1) BR8300052A (en)
DE (1) DE3382186D1 (en)
DK (1) DK580582A (en)
EG (1) EG15337A (en)
ES (1) ES8405879A1 (en)
GR (1) GR78427B (en)
IN (1) IN159632B (en)
MX (1) MX152516A (en)
NO (1) NO160555C (en)
OA (1) OA07295A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5157605A (en) * 1987-04-27 1992-10-20 Schlumberger Technology Corporation Induction logging method and apparatus including means for combining on-phase and quadrature components of signals received at varying frequencies and including use of multiple receiver means associated with a single transmitter
US5184079A (en) * 1990-11-13 1993-02-02 Schlumberger Technology Corporation Method and apparatus for correcting data developed from a well tool disposed at a dip angle in a wellbore to eliminate the effects of the dip angle on the data
DE4429517C2 (en) * 1994-08-19 1996-08-14 Man Technologie Gmbh Device and method for correcting a measurement curve or a signal curve and its or its use for the reconstruction of position errors on railway tracks from geometric relative measurements
US5841281A (en) * 1996-03-22 1998-11-24 Western Atlas International, Inc. Method for determining electrical conductivity of earth formations from electromagnetic induction voltage measurements
US7027926B2 (en) * 2004-04-19 2006-04-11 Pathfinder Energy Services, Inc. Enhanced measurement of azimuthal dependence of subterranean parameters
DE102005028757A1 (en) * 2005-06-22 2007-01-04 Schaeffler Kg Control valve for a device for the variable adjustment of the timing of gas exchange valves of an internal combustion engine
US8195400B2 (en) 2009-05-08 2012-06-05 Smith International, Inc. Directional resistivity imaging using harmonic representations
US8271199B2 (en) 2009-12-31 2012-09-18 Smith International, Inc. Binning method for borehole imaging
US8600115B2 (en) 2010-06-10 2013-12-03 Schlumberger Technology Corporation Borehole image reconstruction using inversion and tool spatial sensitivity functions
EP2682787A1 (en) * 2012-07-02 2014-01-08 Services Petroliers Schlumberger Methods and Systems for Improving Interpretation of Formation Evaluation Measurements
EP3396398B1 (en) * 2017-04-27 2020-07-08 Rohde & Schwarz GmbH & Co. KG Signal correction method, system for correcting a measured signal, as well as oscilloscope
CN111188611B (en) * 2018-11-15 2023-05-05 天津大学青岛海洋技术研究院 Method for processing deconvolution resistivity of cased well
CN112083507B (en) * 2020-09-07 2023-09-05 中国海洋石油集团有限公司 Transient electromagnetic rescue well detection method based on empirical mode decomposition
CN112904433B (en) * 2021-01-27 2023-03-17 天津大学 Through-casing resistivity logging method of transient electromagnetic symmetric structure
CN114089428B (en) 2021-10-29 2022-08-12 中国矿业大学 A Time Domain Electromagnetic Tensor Logging Method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL250643A (en) * 1959-04-17
US3226633A (en) * 1960-06-08 1965-12-28 Schlumberger Well Surv Corp Induction logging apparatus including non-linear means for translating a detected signal
US4314339A (en) * 1971-09-07 1982-02-02 Schlumberger Limited Method of generating subsurface characteristics models
US3882375A (en) * 1974-01-28 1975-05-06 Mobil Oil Corp Electromagnetic well logging system having receiver and nulling coils mounted on separate magnetic cores

Also Published As

Publication number Publication date
ES518834A0 (en) 1984-06-16
AU9198182A (en) 1983-07-21
OA07295A (en) 1984-08-31
AU559470B2 (en) 1987-03-12
EP0084001A3 (en) 1986-12-30
EP0084001B1 (en) 1991-03-06
ES8405879A1 (en) 1984-06-16
NO824063L (en) 1983-07-13
DK580582A (en) 1983-07-13
EP0084001A2 (en) 1983-07-20
NO160555C (en) 1989-04-26
EG15337A (en) 1993-10-30
GR78427B (en) 1984-09-27
KR890004722B1 (en) 1989-11-25
MX152516A (en) 1985-08-14
IN159632B (en) 1987-05-30
DE3382186D1 (en) 1991-04-11
BR8300052A (en) 1983-09-20
NO160555B (en) 1989-01-16

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